Removed is_ipaddr() as ip_in_subnet() does it already.
(cherry picked from commit e0f12d6bfd604c79ac9bf8f7dce5daa68b8c0d1a)
Removed is_ipaddr() as ip_in_subnet() does it already.
(cherry picked from commit e0f12d6bfd604c79ac9bf8f7dce5daa68b8c0d1a)